Is the Honda F23A1 a Decent and Reliable Engine?

Honda is well known for making pretty decent cars that are generally reliable. Are they the most reliable? Maybe not. But they are definitely up there. Honda has made a lot of vehicles over the years and it is simply unfeasible that they will all be perfect. So is the F23A1 one of the good ones? Does the F23A1 still hold up all of these years later?

Let’s get into all of that and more right here and now in this quick and to-the-point blog post highlighting everything you need to know about the F23A1 not just in terms of reliability, but longevity and performance.

What Is The Honda F23A1?

If you have been through plenty of Honda dealerships and online forums/markets and haven’t yet come across the model of Honda called the F23A1 that will be because it is not a model number. It’s the engine identification code for a select few Hondas that are, arguably lucky enough, to have this engine as default.

Now, the F23A1 has had some mixed reviews over the years and while it doesn’t hold up to modern standards for new engines it was great at the time and has held up reasonably well if you view it through the lens of it being an old engine from a different generation of cars.

Is The Honda F23A1 a VTEC?

The Honda F23A1 does traditionally come with a VTEC as standard which is something that definitely holds the engine back in terms of longevity but that has no effect on its short-term reliability.

You could probably argue that the extra strain that a VTEC will naturally put on the engine at some points while driving will reduce the lifespan of the engine and may make it slightly less reliable in its old age. If you are buying a Honda second hand then chances are you will be getting one with a VTEC as that comes as standard on an F23 engine, however, the F23A5 does not come with a VTEC as standard so it is important to double-check.

Is The Honda F23A1 a Good Engine?

The Honda F23A1 engine is a perfectly fine engine and is rated to about 150 brake horsepower (thanks to its VTEC) at 5500 RPMs. Which is pretty good going for something that came out between 1998 and 2002. It has a compression ratio of 8.8:1 and will certainly get you where you need to go.

Honda estimates that the F23A1 will last for about 250-300k miles before it starts to pack it in. However, you will often see Honda Accords that are 20 years old with 300k+ miles on the clock for sale online. And they’ll sell for good money still. This engine may be a little dated but it is not exactly a 70s banger.

Is The Honda F23A1 a Reliable Engine?

As we have touched on above, the engine is supposed to last for about a quarter of a million miles and will often surpass that. And, as we touched on above, there are some excess strains from the VTEC to consider when considering its reliability/longevity. When all the factors are weighed against each other the F23A1 is still a solid reliable choice.

And for the cost of the 2002 Accord, or simply just the engine, the price to pick one up isn’t too bad. Ordinarily, people wouldn’t replace the F23A1 unless they were in pursuit of maximum performance in a slightly older vehicle. Drag racing for fun, for example. Or just because someone might prefer more than 200 horses.

What Are Some Good Modifications For The Honda F23A1 To Improve Its Reliability?

If you want to modify your F23A1 engine to breathe some new life into it, and potentially extend its lifespan of the engine even further, there are a few small things you can do. First of all, new air filters are a good move.

Many people fail to ever really change them and they can become so blocked with gunk, fumes, and carbon build-up that the airflow into the engine is minuscule and your engine is more prone to overheating.

You can buy a decent drop-in filter for like 30 bucks so that’s an easy move. Additionally, the cylinder heads will likely be suffering from similar carbon build-up and potential minor warping so you may want to machine them down. Or at the very least give them a good soak and scour off whatever grit and grime that you can.

Can I Turbocharge An F23A1 Engine?

You absolutely can turbocharger an F23A1 engine and you will be pleased to know that it is already perfectly adjusted for such an endeavor. As you likely know, turbocharging requires engine compression ratios to be lowered in the majority of cases to about 9:1 as a general rule of thumb.

Luckily, the F23A1 engine comes as standard with compression ratios between 8.8:1 and 9.3:1. Any of these compression levels will be perfectly suitable for turbocharging. It is just a matter of which kit you want to go for. You can pick one up for about $1500 and will be able to squeeze another 200 brake horsepower out of the motor.

What Is A Good Alternative To The F23A1 Engine?

The Honda F series is a decent “family” of engines. But, it is not the best. Many people feel it’s a little bit lacking compared to its successor the H series. If you want raw power and speed then the H series might be more up your alley. However, if you are more so interested in something that is indeed reliable and designed for longevity the F23A1 is perfectly fine.


Yes, the F23A1 is a decent and reliable engine. Even 20 years down the road after a hundred thousand miles and a handful of owners you can still put your faith in a well-looked-after F23A1 for those long journeys and everyday commuting.

You are unlikely to meet many people that covet the F23A1 and directly seek it out to swap into their own vehicle. But if it’s a package deal, and you are interested in an old Accord, you should feel happy with an F23A1. You know what you are getting into.

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